Home / 90,278.62-124,582.95-49,991.51

Finding the Fourth Proportional to 90,278.62, 124,582.95 and 49,991.51

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Solution

The fourth proportional to 90,278.62, 124,582.95 and 49,991.51 is: 68,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,278.62 : 124,582.95 = 49,991.51 : x
  2. Step 2: Convert to fraction form
    90,278.62/124,582.95 = 49,991.51/x
  3. Step 3: Cross multiply
    90,278.62x = 124,582.95 × 49,991.51
  4. Step 4: Simplify right side
    90,278.62x = 6,228,089,790.75
  5. Step 5: Solve for x
    x = 6,228,089,790.75/90,278.62
  6. Step 6: Final answer
    x = 68,987.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.